Cerebellopontine angle meningiomas: clinical manifestations and diagnosis.

摘要: Cerebellopontine angle (CPA) meningiomas constitute about 1% of intracranial meningiomas. The clinical aspects a series 32 patients with surgically confirmed CPA are analyzed. most common symptoms at the time initial evaluation were from eighth cranial nerve (unilateral hearing loss--24 patients, vertigo or imbalance--19 tinnitus--11 patients), and fifth (altered sensation--9 facial pain--5 patients). On examination, findings absent caloric response (19 nystagmus (16 diminished sensation (14 ataxia (13 reduced (9 weakness There was often long interval onset to correct diagnosis tumor. Brain stem auditory evoked potentials, blink reflex testing, posterior fossa myelography, computerized tomographic scanning, angiography abnormal in all whom test done, but tests not performed on patients. Computerized scanning important for definitive planning surgical treatment. histopathology temporal bone studied three region internal meatus.